I've got my problems sorted -- the saga is in the link below. In the end, it seems to only relate to Scilab because Scilab uses OpenGL.
I suspect it's some peculiar corner case involving my combination of software and hardware. https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1639371 On Thu, 2016-11-10 at 12:13 +0100, Clément David wrote: > Hello Tim, > > Thanks for the report, FYI I checked a Scilab 6 local build and a Scilab > 5.5.2 on Ubuntu 16.04 and > it seems to works (at least plot3d works). > > I suggest you to reboot and trying to report your issue to Ubuntu on glxgear > (which is the right 3D > testing tool). > > -- > Clément > > Le vendredi 04 novembre 2016 à 12:17 -0700, Tim Wescott a écrit : > > I'm 99.44% sure that the problem here resides in whatever video stuff > > just got updated on Ubuntu 14.04 -- but the problem only seems to > > exhibit itself under Scilab. > > > > So, I'm hoping that someone of a more developer-ish bent could give me a > > more mainstream Ubuntu test that'll let me submit a bug report to those > > guys that'll attract attention. Even better yet, if someone has some > > suggested workarounds that would be exceptionally lovely. I'm trying to > > get some work delivered to a customer TODAY and things have just come to > > a screeching halt -- hopefully I have a laptop around here that'll work. > > > > I can't tell you details about the graphics card & whatnot, but I'm > > willing to dig for it if you tell me it's important. > > > > Attached are two files: devices.txt is the output of the "ubuntu-drivers > > devices" command, while "scilab.doesnt.graph.txt" is the output of > > Scilab's error stream when I start up, try to graph something, then > > exit. The program gets as far as opening a window on which to graph, > > but fails utterly to actually put up a graph. > > > > I tried installing and running glxgears, but it just says it can't get > > an RGB channel without saying why -- I don't know if this is part of the > > problem or not. > > > > _______________________________________________ > > users mailing list > > users@lists.scilab.org > > http://lists.scilab.org/mailman/listinfo/users > _______________________________________________ > users mailing list > users@lists.scilab.org > http://lists.scilab.org/mailman/listinfo/users -- Tim Wescott www.wescottdesign.com Control & Communications systems, circuit & software design. Phone: 503.631.7815 Cell: 503.349.8432 _______________________________________________ users mailing list users@lists.scilab.org http://lists.scilab.org/mailman/listinfo/users
